ME440 Heat Transfer Fall 2014
Name
h
HW Set #1 - Problem #1
Given: A masonry wall has a thermal conductivity of 0.75 W/mK and a composite wall has thermal
conductivityof 0.25 W/mK. Both walls are subj
M E440 Heat Transfer ' Fall 2016
Name
HW Set #2 - Problem #1
Given: Consider a situation with steadystate, 1-D heat conduction through a plane wall with a thermal
conductivity of k = 50 W/mK and a thi
M E440 Heat Transfer Fall 2015
p
e;
H! Set #9 - Problem #1
Given: Although two materials are at the same temperature, one may feel cooler to the touch than the
other. Consider thick plates of copper a
ME440 Heat Transfer Fall 2014
3 _ Name
HW Set #4 - Problem #1
Given: A long cylindrical rod of diameter 200 mm with thermal conductivity of 0.5 WImK experiences
uniform volumetric heat generation of 2
ME440 Heat Transfer Spring 2016
Name
HW Set #5 - Problem #1
Given: The heat transfer coefcient for air owing over a sphere is to be determined by measuring the
temperature-time history of a sphere fab
ME440 Heat Transfer Spring 2015
HW Set #8 Problem #3 (Problem to submit.)
Given: To cool a summer home without using a vapor compression refrigeration cycle, air is routed
through a plastic pipe (k =
Rate of heat loss from a human
q=rate of heat transfer = (W)(J/s)
Calories eaten by person = 2400 nutritional calories (kcal)
(2400 kcal/day)(1000 cal/1 kcal)(4.184 J/1 cal)(1 day/24 hrs)(1 hr/3600 s)